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arXiv 1201.0904cond-mat.stat-mech
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奇偶变量随机系统的非平衡态热力学

Non-equilibrium thermodynamics of stochastic systems with odd and even variables

Richard E. Spinney, Ian J. Ford

摘要:

随机系统的总熵产生可以分为三个量。第一个对应于多余的热量,而后两个包括内务热量。我们表示这两个组成部分的瞬态和广义管家热,我们得到了后者的积分波动定理,适用于所有马尔可夫随机动力学。以前报道的形式主义时,得到的平稳概率分布是对称的所有变量是奇数下的时间反转,限制考虑方向变量,如速度。

英文摘要:

The total entropy production of stochastic systems can be divided into three quantities. The first corresponds to the excess heat, whilst the second two comprise the house-keeping heat. We denote these two components the transient and generalised house-keeping heat and we obtain an integral fluctuation theorem for the latter, valid for all Markovian stochastic dynamics. A previously reported formalism is obtained when the stationary probability distribution is symmetric for all variables that are odd under time reversal which restricts consideration of directional variables such as velocity.

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